feat: remove SimplePhysicsWorld

destrum/include/destrum/Physics/PhysicsSceneBridge.h

@@ -4,19 +4,9 @@
 #include <vector>
 
 #include <destrum/Physics/PhysicsWorld.h>
-#include <destrum/Physics/SimplePhysicsWorld.h>
 
 class GameObject;
 
-// Small helper you can store inside Scene.
-//
-// Example:
-// class Scene {
-// public:
-//     PhysicsSceneBridge& GetPhysics() { return m_Physics; }
-// private:
-//     PhysicsSceneBridge m_Physics{std::make_unique<SimplePhysicsWorld>()};
-// };
 class PhysicsSceneBridge final {
 public:
     explicit PhysicsSceneBridge(std::unique_ptr<PhysicsWorld> world);

destrum/include/destrum/Physics/SimplePhysicsWorld.h

@@ -1,89 +0,0 @@
-#pragma once
-
-#include <vector>
-#include <optional>
-
-#include <destrum/Physics/PhysicsWorld.h>
-
-class Rigidbody;
-
-// Simple CPU placeholder backend.
-//
-// This is NOT a replacement for Jolt/PhysX/Bullet.
-// It exists so your component/scene/render sync can be implemented and tested
-// before the real backend is added.
-//
-// It supports:
-// - static, dynamic, kinematic bodies
-// - gravity
-// - force/impulse integration
-// - very simple sphere/box/capsule raycasts using bounding spheres
-//
-// It does NOT support:
-// - collision response
-// - contacts
-// - friction
-// - constraints
-// - real character controllers
-class SimplePhysicsWorld final : public PhysicsWorld {
-public:
-    explicit SimplePhysicsWorld(const glm::vec3& gravity = glm::vec3{0.0f, -9.81f, 0.0f});
-
-    void Step(float fixedDt) override;
-
-    PhysicsBodyHandle CreateBody(const PhysicsBodyDesc& desc) override;
-    void DestroyBody(PhysicsBodyHandle body) override;
-
-    void SetBodyTransform(PhysicsBodyHandle body, const PhysicsTransform& transform) override;
-    PhysicsTransform GetBodyTransform(PhysicsBodyHandle body) const override;
-
-    void SetLinearVelocity(PhysicsBodyHandle body, const glm::vec3& velocity) override;
-    glm::vec3 GetLinearVelocity(PhysicsBodyHandle body) const override;
-
-    void AddForce(PhysicsBodyHandle body, const glm::vec3& force) override;
-    void AddImpulse(PhysicsBodyHandle body, const glm::vec3& impulse) override;
-
-    bool Raycast(const glm::vec3& origin,
-                 const glm::vec3& direction,
-                 float maxDistance,
-                 PhysicsRaycastHit& hit,
-                 PhysicsBodyHandle ignoreBody = {}) const override;
-
-    void SyncKinematicBodiesToPhysics(float fixedDt) override;
-    void SyncDynamicBodiesToTransforms();
-
-    [[nodiscard]] const glm::vec3& GetGravity() const { return m_Gravity; }
-    void SetGravity(const glm::vec3& gravity) { m_Gravity = gravity; }
-
-private:
-    struct BodyRecord {
-        bool alive{false};
-
-        PhysicsBodyHandle handle{};
-        PhysicsBodyDesc desc{};
-
-        PhysicsTransform previousTransform{};
-        PhysicsTransform currentTransform{};
-
-        glm::vec3 linearVelocity{0.0f};
-        glm::vec3 accumulatedForce{0.0f};
-
-        Rigidbody* rigidbody{nullptr};
-    };
-
-    [[nodiscard]] BodyRecord* FindBody(PhysicsBodyHandle body);
-    [[nodiscard]] const BodyRecord* FindBody(PhysicsBodyHandle body) const;
-
-    [[nodiscard]] float GetApproxBoundingRadius(const BodyRecord& body) const;
-    [[nodiscard]] static bool RaySphere(const glm::vec3& origin,
-                                        const glm::vec3& dirNormalized,
-                                        const glm::vec3& center,
-                                        float radius,
-                                        float maxDistance,
-                                        float& outDistance);
-
-    glm::vec3 m_Gravity{0.0f, -9.81f, 0.0f};
-
-    std::vector<BodyRecord> m_Bodies;
-    std::uint32_t m_NextId{0};
-};